Bump junit from 4.12 to 4.13.1 (#63)

Bumps [junit](https://github.com/junit-team/junit4) from 4.12 to 4.13.1.
- [Release notes](https://github.com/junit-team/junit4/releases)
- [Changelog](https://github.com/junit-team/junit4/blob/main/doc/ReleaseNotes4.12.md)
- [Commits](junit-team/junit4@r4.12...r4.13.1)

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Thor Anker Kvisgård Lange <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -59,7 +59,7 @@
         <io.swagger.core.v3.version>2.1.4</io.swagger.core.v3.version>
         <javax.xml.bin.jaxb-api.version>2.3.0</javax.xml.bin.jaxb-api.version>
         <javax.ws.rs.version>2.1</javax.ws.rs.version>
-        <junit.version>4.12</junit.version>
+        <junit.version>4.13.1</junit.version>
         <org.apache.maven.maven-plugin-annotations.version>3.5</org.apache.maven.maven-plugin-annotations.version>
         <org.apache.maven.version>3.6.0</org.apache.maven.version>
         <org.apache.maven.plugin-testing.version>3.3.0</org.apache.maven.plugin-testing.version>